Product Description
Synonyms:
Ultranox 626;Bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite; 3,9-Bis(2,4-bis(1,1-dimethylethyl)phenoxy)-2,4,8,10-tetraoxa-3,9-diphosphaspiro(5.5)undecane; ADK Stab PEP 24; Mark PEP 24
Application
High-effective solid phosphite ester antioxidant, which is superior to other phosphite ester in the effective protection of polymers’ color. It is often blended with phenolic principal antioxidant (such as Antioxidant 1010) to prepare composite antioxidant which improves the thermo-stability of polymer processing, thus making it widely applied in PE, PET,PP, PS, PA, PC, ABS and many other polymer materials. Reference dosage at 0.1%-0.3%.
Product Parameters
| Item | Specification |
| Appearance | White crystalline powder |
| Purity | 95.0% min |
| Melting point | 170.0-180.0°C min |
| Volatiles | 1.0% max |
| Acid value | 1.0mgKOH/g max |
| Free 2,4-di-t-butylphenyl | 1.0% max |
Packaging & Shipping
Packing and Storage
Packing In 20 or 25kgs net plastic bag into Aluminum bag with nitrogen protection into carton.
Storage Keep container tightly closed. Away from moisture ad heat to avoid hydrolysis.
Safety Information
Non-hazardous for air, sea and road freight.
| Description |
| Antioxidant 626 is a white to almost white powder substance with low volatility and higher efficiency of action. It is often used in combination with hindered phenolic antioxidants. |
| Function |
| 1. Antioxidant 626 is suitable for: polyolefins and olefin copolymers, engineering plastics such as polycarbonate and polyamide, rubber and elastomers, coatings and adhesives. 2. The amount of antioxidant 626 added is 0.05-0.2%, and the specific amount will be determined based on application testing. 3. Low volatility organic synthetic antioxidant and polymerization inhibitor 4. After compounding with phenolic antioxidants, it is widely used in polymer materials such as PE, PP, PS, polyamide, polycarbonate, ABS, etc |
| Application |
| 1. Antioxidant 626 is suitable for: polyolefins and olefin copolymers, engineering plastics such as polycarbonate and polyamide, rubber and elastomers, coatings and adhesives. 2. The amount of antioxidant 626 added is 0.05-0.2%, and the specific amount will be determined based on application testing. 3. Low volatility organic synthetic antioxidant and polymerization inhibitor 4. After compounding with phenolic antioxidants, it is widely used in polymer materials such as PE, PP, PS, polyamide, polycarbonate, ABS, etc |
Product Description
| Product Name: | Ultranox 626 |
| CAS: | 26741-53-7 |
| MF: | C33H50O6P2 |
| MW: | 604.69 |
| EINECS: | 247-952-5 |
| Melting point | 160-178°C |
| Boiling point | 555.8±50.0 °C(Predicted) |
| density | 1.166[at 20℃] |
| form | Solid |
| color | White to Off-White |
Main product
| VC-IP/Ascorbyl Tetraisopalmitate | Tranexamic Acid | 1,4-Dipropionyloxybenzene |
| Alpha Arbutin | Ectoin | Glycyrrhetinic Acid (18-Beta Glycyrrhetinic Acid) |
| Beta Arbutin | Dimethylmethoxy Chromanol | Dimethymethoxyl Chromanyl Palmitate |
| Deoxyarbutin | Alpha Lipoic Acid | Magnesium Ascorbyl Phosphate |
| Kojic Acid | Charcoal Powder(Bamboo) | Sodium Ascorbyl Phosphate |
| Kojic Acid Dipalmitate | Stearyl Glycyrrhetinate | Hydrocotyle Asiatica Extract |
| Ergothioneine | Tetrahydrocurcumin | Potassium 4-Methoxysalicylate |
| Carnosine | Glycolic Acid | Salicylic Acid |
| Undecylenoyl Phenylalanine | Bromelain | Alpha Hydroxy Acid/AHA |
| Caffeic acid | Mequinol | Phytic acid |
| Niacinamide | SymWhite Powder | Snow White |
| Papain | 3-o-ethyl ascorbic acid/VCE | Giga White |
| Monobenzone | Mandelic acid | Glabridin |
| Azelaic Acid | Melatonin | Dipotassium Glycyrrhizinate |
| Ascorbyl Glucoside/AA2G | L-Glutathione Reduced | Procysteine |
| Fullerence C60 | Cetyl Tranexamate HCl/TXC | Hydroxypinacolone reinoate(HPR) |
| Sodium Hyaluronate/Hyaluronic Acid | Beta-Glucan | Sodium Polyglutamate | Inositol |
| Pro-xylane/Hydroxypropyl tetrahydropyrantriol | Collagen | 2-O-β-D-glucosyl-glycerol | Glucosylglycerol |
| Biosaccharide Gum-1 | Ceramide | Orotic Acid Monohydrate | 1,2-Hexanediol |
| Sodium L-pyroglutamate;PCA-Na | D-panthenol | Maltobionic Acid | Lactobionic acid |
| Caprylyl Glycol/1,2-Dihydroxyoctane | DL-panthenol | Allantoin | Polyglutamic Acid |
| Ascorbic Acid (Vitamin C) | Magnesium Ascorbyl Phosphate | Ascorbyl Isostearate | Ascorbyl Glucoside |
| 3-o-Ethyl Ascorbic Acid | Sodium Ascorbyl Phosphate | Ascorbyl Tetraisopalmitate | Ascorbyl Palmitate |
| Apple Polyphenols | Sodium Copper Chlorophyllin | D-Isoascorbic Acid | Ferulic Acid | EGF/Oligopeptide-1 |
| Ascorbyl Palmitate | Resveratrol | Vitamin E | Copper PCA | Vitamin E |
| EUK 134 | Glucosylrutin | Pterostilbene | ZINC PCA | Coenzyme Q10 |
| Vanillyl butyl ether | Menthol Crystal | Menthyl lactate | Menthone 1,2-glycerol ketal |
| Capsaicin | WS-23 | Camphor | WS-3 |
| Q: What types of cosmetic raw materials do you supply? | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| We supply a wide range of cosmetic raw materials, including but not limited to whitening agents, moisturizing agents, antioxidation, emollients, surfactants, preservatives, pigments, and active ingredients to meet diverse formulation needs. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Q: How can I place an order for cosmetic ingredients? | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| To place an order, simply browse our product catalog, select the desired items, and follow the online checkout process. If you have specific requirements or need assistance, our customer service team is ready to help. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Q: What is the minimum order quantity for your cosmetic raw materials? | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| The minimum order quantity varies by product. You can find this information on the product pages or contact our sales team for specific details. Usually MOQ is from 1kg. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Q: Can I request a sample of a specific cosmetic ingredient before placing a bulk order? | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Yes, we offer sample sizes for most of our products. You can request samples through our website, and our team will assist you in choosing the right products for your needs. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Q: What quality standards do your cosmetic raw materials adhere to? | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Our cosmetic raw materials adhere to industry-standard quality and safety regulations. We ensure compliance with relevant standards and provide documentation, such as Certificates of Analysis, upon request. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Q: What payment methods do you accept for cosmetic ingredient purchases? | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| We accept various payment methods, including credit cards, bank transfers, and other secure online payment options. Details are available during the checkout process. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Q: How do you ensure the timely delivery of cosmetic raw materials? | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| We work with reliable shipping partners to ensure timely and secure delivery of your orders. You can track your shipment through tracking website and our customer service team is available to assist with any delivery-related inquiries. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Q: Do you provide technical support or documentation for the proper usage of your cosmetic raw materials? | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Absolutely. We offer technical support and provide comprehensive documentation, including usage guidelines and formulation recommendations. Our team is available to address any technical inquiries you may have.
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Post time: May-11-2026